package com.xyxy.web;

import com.xyxy.pojo.User;
import com.xyxy.service.UserService;
import com.xyxy.service.impl.UserServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * @Desc: 已被userservlet替代
 * @param:
 * @return:
 */
public class LoginServlet extends HttpServlet {

    private UserService userService = new UserServiceImpl();

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        //获取请求参数
        String username = req.getParameter("username");
        String password = req.getParameter("password");

        //调用userService.login()登录处理业务
        User loginUser = userService.login(new User(null, username, password, null));
        if(loginUser == null){
            //把错误信息和回显的表单项信息保存到request域中
            req.setAttribute("msg","用户或密码错误！");
            req.setAttribute("username",username);

            //如果等于null,说明登录失败,跳回登录页面
            System.out.println("登录失败，用户名不存在！");
            req.getRequestDispatcher("/pages/user/login.jsp").forward(req,resp);
        }else{
            //如果登录成功，跳到成功页面login_success.html
            req.getRequestDispatcher("/pages/user/login_success.jsp").forward(req,resp);
        }
    }
}
